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Determination of spad-502 values ​​Potted plants were harvested from wild ferrets 1a, and intact leaves with no mechanical damage, no pests and lesions were selected. The dirt and dust on the surface of the leaves were wiped off and measured with a chlorophyll detector. 4 blades. The assay sample was used as a sample for chlorophyll content determination. The determination of chlorophyll content in spad-502 is a rapid and indirect method. In order to verify its feasibility in the determination of chlorophyll content in white peony, the correlation between the chlorophyll content and the padd value of 20 white peony varieties was analyzed. The correlation between chlorophyll content and spad values ​​also varies. There was a significant linear correlation between the chlorophyll content and the padd value of all white peony varieties. The maximum correlation coefficient can reach 0.99, and the lowest correlation coefficient also reaches a significant level. These results show that there is a positive correlation between the leaf padding value and the chlorophyll content when using the padd value to determine the relative value of the chlorophyll content. Therefore, the paddling leaf value can be used as an indicator of the nutrient requirement during the growth period of ferret. .
The chlorophyll content of different species was determined by chlorophyll detector. It was found that the contents of chlorophyll a, chlorophyll b, total chlorophyll and SPAD were different in different germplasms of white peony, but there was no significant difference among most cultivars. According to the correlation analysis between the chlorophyll content and the padd value, there was a significant linear correlation between the 20 white grub varieties, and the correlation coefficient ranged from 0.48 to 0.99, demonstrating that the chlorophyll meter was used to measure the chlorophyll content. Reasonable and feasible, more convenient and quick, it is important to determine the material does not damage the leaves of the plant, the measurement is not affected by time, temperature and other climatic conditions, can quickly receive the measurement data, to provide a reliable and fast measurement method for relevant daylight research .
Determination of Chlorophyll Content and Spad Value of Wild Pheasants by Chlorophyll Detector
White Pelicans in Guizhou and Guangxi. There are many distributions in Anhui and other places, belonging to perennial herbaceous plants of the genus Orchidaceae. White peony has extremely high ornamental value, medicinal value and economic value. The photosynthetic utilization of green plants mainly depends on the chlorophyll content of the plants. During the whole growth period of the plants, the nutritional status of the plant can be identified by the chlorophyll content of the plants. Therefore, it is important to study the content of chlorophyll in the leaves of green plants. The chlorophyll detector determines the chlorophyll content of leaves with different chlorophyll content and absorbs two different wavelengths of light. It has the characteristics of rapidness, simplicity, and non-destructiveness. The measurement result is the relative value of the chlorophyll content in the leaves of plants. The plant material was used, but the determination of the padd leaf value and chlorophyll content of the wild white peony root and their correlation analysis are rarely reported. This experiment has made a preliminary exploration in this area, aiming at providing a new way for rapid determination of the chlorophyll content of the wild white peony germplasm resources.